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Finding the Fourth Proportional to 1,170.29, 1,755.44 and 304.60

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Solution

The fourth proportional to 1,170.29, 1,755.44 and 304.60 is: 456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170.29 : 1,755.44 = 304.60 : x
  2. Step 2: Convert to fraction form
    1,170.29/1,755.44 = 304.60/x
  3. Step 3: Cross multiply
    1,170.29x = 1,755.44 × 304.60
  4. Step 4: Simplify right side
    1,170.29x = 534,703.40
  5. Step 5: Solve for x
    x = 534,703.40/1,170.29
  6. Step 6: Final answer
    x = 456.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.